This report discusses the leadership style of Emma Walmsley, CEO of GlaxoSmithKline, who follows a Transactional Leadership Approach. Walmsley is described as a modern, strong, and dynamic leader who combines an amiable style with a steely focus. She sets clear objectives and pays close attention to talent management, but can be ruthless with underperformers. Walmsley has been recognized for her performance, topping Fortune Magazine’s list of ‘Most Powerful International Women’ in business in 2018. She does not tolerate ethical violations and expects employees to perform their jobs ethically. With her transactional approach to leadership, Walmsley has been able to motivate employees to become productive and efficient members of the team.